LM4871

更新时间： 2024-11-09 12:01:35

品牌	Logo	应用领域
德州仪器 - TI		放大器功率放大器
页数	文件大小	规格书
23页	1234K
描述
3W Audio Power Amplifier with Shutdown Mode

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LM4871 数据手册

LM4871

www.ti.com

SNAS002F –FEBRUARY 2000–REVISED MAY 2013

LM4871

3W Audio Power Amplifier with Shutdown Mode

Check for Samples: LM4871

FEATURES

DESCRIPTION

The LM4871 is a mono bridged audio power amplifier

capable of delivering 3W of continuous average

power into a 3Ω load with less than 10% THD when

conserve power in portable applications, the

LM4871's micropower shutdown mode (I_Q= 0.6µA,

typ) is activated when V_DDis applied to the

SHUTDOWN pin.

•

No Output Coupling Capacitors, Bootstrap

Capacitors, or Snubber Circuits Required

•

Unity-gain Stable

WSON, VSSOP, SOIC, or PDIP Packaging

External Gain Configuration Capability

Pin Compatible with the LM4861

Boomer audio power amplifiers are designed

specifically to provide high power, high fidelity audio

output. They require few external components and

operate on low supply voltages from 2.0V to 5.5V.

Since the LM4871 does not require output coupling

capacitors, bootstrap capacitors, or snubber

networks, it is ideally suited for low-power portable

systems that require minimum volume and weight.

APPLICATIONS

•

Portable Computers

Desktop Computers

Low Voltage Audio Systems

KEY SPECIFICATIONS

•

PO at 10% THD+N, 1kHz

Additional LM4871 features include thermal shutdown

protection, unity-gain stability, and external gain set.

–

LM4871LD: 3Ω , 4Ω Loads; 3W (typ),

2.5 W (typ)

Note: An LM4871LD that has been properly mounted

to a circuit board will deliver 3W into 3Ω (at 10%

THD). The other package options for the LM4871 will

deliver 1.5W into 8Ω (at 10% THD). See the

Application Information section for further information

concerning the LM4871LD, LM4871MM, LM4871M,

and the LM4871N.

–

All other LM4871 Packages: 8Ω load

1.5 W (typ)

•

Shutdown Current 0.6µA (typ)

Supply Voltage Range 2.0V to 5.5 V

THD at 1kHz at 1W Continuous Average

Output Power into 8Ω 0.5% (max)

Connection Diagrams

Figure 1. VSSOP, Small Outline, and PDIP

Figure 2. WSON Package (Top View)

See Package Number NGN0008A

Package

Top View

See Package Number DGK0008A, D0008A, or

D0008E

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...23

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与LM4871相关器件

型号	品牌	获取价格	描述	数据表
LM4871_03	NSC	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871LD	TI	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871LD/NOPB	TI	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871LD/NOPB	NSC	获取价格	IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8, LLP-8, Audio/Video Amplifier
LM4871LDX/NOPB	TI	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871LDX/NOPB	NSC	获取价格	IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8, LLP-8, Audio/Video Amplifier
LM4871M	NSC	获取价格	1.1W Audio Power Amplifier with Shutdown Mode
LM4871M	TI	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871M/NOPB	TI	获取价格	3W Audio Power Amplifier with Shutdown Mode
LM4871MDA	NSC	获取价格	IC 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC, DIE, Audio/Video Amplifier

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